small fishfinder battery

[Podric]

I have an almost new 12V 10Ah litium-ion battery.

Only problem is I let it sit for 4 years so I am pretty sure it is dead as a doornail but revive suggestions are welcome.

Anyone know of best inexpensive source for Li-Ion batteries?

Preferably I would like 2 smaller ones in parallel instead of 1 big one but price is a big factor.

[DRIFTER_016]

Charge it up. 

They are not like lead acid batteries that become bricks if you let them drain completely.

You might be surprised that it will work fine.

[Podric]

I started doing some research. 

Brining an Li-ion battery to life can be very dangerous.

I may try.

 

thanks.

[Fisherman]

Well if it's 4 years old, it's not new.  Next time, put recharge dates on your wall calendar or phone with a calendar.  Do it outside,  and hide behind the garbage can.

Edited September 10, 2022 by Fisherman